67720140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{857}}^1$

素因数の和:1311

約数の個数: 72

約数和(自身を含む): 206125920

約数和(自身を除く): 138405780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 439, 857, 878, 1317, 1714, 1756, 2195, 2571, 2634, 3428, 3951, 4285, 4390, 5142, 5268, 6585, 7713, 7902, 8570, 8780, 10284, 12855, 13170, 15426, 15804, 17140, 19755, 25710, 26340, 30852, 38565, 39510, 51420, 77130, 79020, 154260, 376223, 752446, 1128669, 1504892, 1881115, 2257338, 3386007, 3762230, 4514676, 5643345, 6772014, 7524460, 11286690, 13544028, 16930035, 22573380, 33860070, 67720140]

約数ペア:

[(1, 67720140), (2, 33860070), (3, 22573380), (4, 16930035), (5, 13544028), (6, 11286690), (9, 7524460), (10, 6772014), (12, 5643345), (15, 4514676), (18, 3762230), (20, 3386007), (30, 2257338), (36, 1881115), (45, 1504892), (60, 1128669), (90, 752446), (180, 376223), (439, 154260), (857, 79020), (878, 77130), (1317, 51420), (1714, 39510), (1756, 38565), (2195, 30852), (2571, 26340), (2634, 25710), (3428, 19755), (3951, 17140), (4285, 15804), (4390, 15426), (5142, 13170), (5268, 12855), (6585, 10284), (7713, 8780), (7902, 8570)]